Analysis

  • max time kernel
    16s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/01/2024, 17:10

General

  • Target
    4ee21362f20f5c9d7bcbaf439e1f4a34.dll
  • Size 3.2MB
  • Sample240109-vprhbsefck
  • SHA256 5b183bcb86d9881dad0e2f0ece529860b68e9ca6a15166faae2a72faaf2a5fd8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Shellcode 1 IoCs

    Detects Dridex Payload shellcode injected in Explorer process.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\4ee21362f20f5c9d7bcbaf439e1f4a34.dll,#1
    1⤵
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    PID:3848
  • C:\Windows\system32\EhStorAuthn.exe
    C:\Windows\system32\EhStorAuthn.exe
    1⤵
      PID:1768
    • C:\Windows\system32\msdt.exe
      C:\Windows\system32\msdt.exe
      1⤵
        PID:4664
      • C:\Windows\system32\psr.exe
        C:\Windows\system32\psr.exe
        1⤵
          PID:1048
        • C:\Users\Admin\AppData\Local\ktmGYaA\psr.exe
          C:\Users\Admin\AppData\Local\ktmGYaA\psr.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:1884
        • C:\Users\Admin\AppData\Local\lnn\msdt.exe
          C:\Users\Admin\AppData\Local\lnn\msdt.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:224
        • C:\Users\Admin\AppData\Local\q4FAiGs\EhStorAuthn.exe
          C:\Users\Admin\AppData\Local\q4FAiGs\EhStorAuthn.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:3104

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/224-114-0x000002B41FCC0000-0x000002B41FCC7000-memory.dmp

              memory/1884-130-0x000001A0C73A0000-0x000001A0C73A7000-memory.dmp

              memory/3104-97-0x0000025D8C4E0000-0x0000025D8C4E7000-memory.dmp

              memory/3524-49-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-44-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-24-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-26-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-30-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-33-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-37-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-39-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-43-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-45-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-47-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-48-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-51-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-54-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-57-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-61-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-63-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-65-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-67-0x0000000001F40000-0x0000000001F47000-memory.dmp

              memory/3524-64-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-62-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-75-0x00007FFE69F40000-0x00007FFE69F50000-memory.dmp

              memory/3524-59-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-16-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-60-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-58-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-56-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-55-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-53-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-52-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-50-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-12-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-19-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-42-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-46-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-41-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-40-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-38-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-36-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-35-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-34-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-32-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-31-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-29-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-28-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-27-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-25-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-23-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-22-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-21-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-20-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-18-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-17-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-15-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-14-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-13-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-11-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-10-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-9-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-7-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3524-5-0x00007FFE6990A000-0x00007FFE6990B000-memory.dmp

              memory/3524-4-0x0000000007EF0000-0x0000000007EF1000-memory.dmp

              memory/3848-1-0x0000000140000000-0x000000014033E000-memory.dmp

              memory/3848-0-0x000001A83F2A0000-0x000001A83F2A7000-memory.dmp

              memory/3848-8-0x0000000140000000-0x000000014033E000-memory.dmp